{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08394_010.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Abilene, Texas | 1950 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034am:g4034am_g083941950:08394_1950-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Abilene, Texas | 1950 | sanborn08394_010 p0","metadata":[{"label":"streets","value":"152"},{"label":"intersections","value":"855"}],"created":"2026-09-23T23:24:56Z","modified":"2026-09-23T23:24:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034am:g4034am_g083941950:08394_1950-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034am:g4034am_g083941950:08394_1950-0000","type":"ImageService3","width":1693,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1979.0 -0.0,-0.0 1693.0,0.0 1693.0,1979.0 -0.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034am:g4034am_g083941950:08394_1950-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[935.5,1518.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-99.7397146,32.4291677]}},{"type":"Feature","properties":{"resourceCoords":[476.5,842.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-99.763872,32.459105]}}]}}]}